1087566620 has 24 divisors (see below), whose sum is σ = 2610160224. Its totient is φ = 372879936.

The previous prime is 1087566611. The next prime is 1087566637. The reversal of 1087566620 is 266657801.

It is a super-3 number, since 3×1087566620³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3884027 + ... + 3884306.

It is an arithmetic number, because the mean of its divisors is an integer number (108756676).

Almost surely, 2^1087566620 is an apocalyptic number.

1087566620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1087566620 is an abundant number, since it is smaller than the sum of its proper divisors (1522593604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1087566620 is a wasteful number, since it uses less digits than its factorization.

1087566620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7768349 (or 7768347 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 1087566620 is about 32978.2749700466. The cubic root of 1087566620 is about 1028.3760566057.

The spelling of 1087566620 in words is "one billion, eighty-seven million, five hundred sixty-six thousand, six hundred twenty".